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C++ *

General-purpose programming language. It has imperative, object-oriented and generic programming features, while also providing facilities for low-level memory manipulation

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Copper Filler: Saving on PCB Manufacturing in KiCad

Level of difficultyMedium
Reading time5 min
Reach and readers2.7K

Hello, fellow developers!

Anyone who designs multilayer printed circuit boards in KiCad has faced the need, during routing, to leave large areas free of copper polygons (whether connected to nets or not) for schematic or other reasons. On outer layers, this isn't a big problem. On inner layers, it's a bit different. While it might be fine from a topology perspective, it's not ideal from a manufacturing point of view.

Today, we want to share a plugin we developed to solve this problem. It's a tool for automatically filling free areas on a PCB with non-current-carrying copper elements, either square or round, of a configurable size.

Why is this needed?

At first glance, an empty area on a board is just bare laminate without copper. But for the manufacturer and the end-user of the device, this has two important consequences.

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Mandelbrot set. 24-bit TrueColor. 80-bit long double. OpenMP. Supersampling 8x8 (64 passes). Colors

Level of difficultyMedium
Reading time3 min
Reach and readers5.2K

The Mandelbrot set. And it's a program! I made it in g++, a freely distributable C++ compiler. Read it! Very interesting. Using OpenMP, you do parallel programming at the multithreading level. And I decided - this would be a completely different level of quality! I implemented honest supersampling (antialiasing) - with 8x8 antialiasing (64 passes per pixel!!!) That is, not 1920 by 1920 pixels, but 8x8 more! 15360 by 15360 pixels! And then these 64 passes reduce by one pixel, but smoothly - and no longer 8-bit, but 24-bit TrueColor!

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